2,4-二硝基茴香醚（DNAN）是用于替代2,4,6-三硝基甲苯（TNT）的钝感炸药的一种重要成分。为了研究初始pH和过氧化氢（H₂O₂）剂量对DNAN降解动力学和降解途径的影响，开展了DNAN的光催化H₂O₂氧化实验。结果显示，初始pH为4~7且H₂O₂剂量为1500~4500 ppm，使用UV/ H₂O₂处理浓度为250 ppm的DNAN溶液时，DNAN的降解服从零级反应动力学。但是，当H₂O₂剂量为750 ppm时，DNAN的降解服从类一级反应动力学。结果表明，DNAN易于被UV/H₂O₂氧化降解。当H₂O₂剂量为1500 ppm且初始pH为7时，3 h内DNAN浓度从250 ppm降到1 ppm以内；但3 h内总有机碳（TOC）和总碳（TC）浓度从100 ppm降到70 ppm以下，9 h后降到5 ppm以下，说明生成了其他有机化合物。这些中间产物氧化为CO₂的速度慢于DNAN的氧化速度。UV/H₂O₂氧化过程中，生成的CO₂释放到空气中，因为溶液pH迅速降低到3左右。9 h的UV/H₂O₂处理后，DNAN中的N绝大多数转化为硝态氮。研究表明，UV/H₂O₂氧化是处理DNAN废水的有效技术。

2,4-dinitroanisole (DNAN) is an important component of insensitive munitions that is anticipated to replace 2,4,6-trinitrotoluene (TNT) in munitions formulations. Photocatalyzed hydrogen peroxide (H₂O₂) oxidation experiments and chemical analyses were conducted to study the effect of initial pH and H₂O₂ dosage on the kinetics of DNAN decomposition and the reaction pathways. The results show that DNAN degradation followed zero-order kinetics when a 250 ppm DNAN solution was treated with ultraviolet (UV) light and 1500–4500 ppm H₂O₂ in an initial pH range of 4–7. However, when the H₂O₂ concentration was 750 ppm, DNAN degradation followed pseudo-first-order kinetics. The results indicate that DNAN can easily be oxidized by UV/H₂O₂ treatment. When the H₂O₂ dosage was 1500 ppm and the initial pH was 7, DNAN was reduced from 250 ppm to less than 1 ppm in 3 h. However, the total organic carbon (TOC) and total carbon (TC) concentrations were reduced slowly from 100 to less than 70 ppm carbon (C) in 3 h, and decreased to about 5 ppm after 9 h of treatment, suggesting the formation of other organic compounds. Those reaction intermediates were oxidized to carbon dioxide (CO₂) at a slower rate than the oxidation of DNAN. CO₂ was emitted from the solution because the solution pH decreased rapidly to about 3 during the UV/H₂O₂ oxidation. Most of the nitrogen in DNAN was converted to nitrate by UV/H₂O₂ oxidation after 9 h of treatment. The research results indicate that UV/H₂O₂ oxidation is a promising technique for the treatment of DNAN in wastewater.